Guard for balling-machines.



C. IVI. GREISING & I. DAHLIN. GUARD FOR BALLING MACHINES.

APPLICATION FILED OCT. I3. 1913. 1,237,635.

Patented Aug. 21, 1917.

2 SHEETS-sneer.

LILILILH Il 1l ILH H JI ILIL Unire srATns @PATENT OFFICE.,

CHARLES M. GREISIN G- JOHN DAHLIN, OF ST. PAUL, MINNESOTA, ASSIGNORS,BY TMESNE ASSIGNMENTS, T INTERNATIONAL HARVESTER COMPANY 0F NEW JERSEY,

A CORPORATION YOIE NEW JERSEY. y f

GUARD FOR BALLING-MACHIN ES.

T0 all whom t may concern:

Be it known that we, CHARLES M; GREI# SING and JOHN DAHLIN, citizens of the UnitedStates, and residents, respectively, of St. Paul, in the county of Ramsey and State of'Minnesota, and of St. Paul, in the county of Ramsey and State of Minnesota, haveinvented certain newand useful Improvements in Guards Ifor Balling-Machines, of which In the operation of balling` machines itv is necessary that such machines be set into motion and 'stopped at frequent intervals, for the reason, among others, that a ball is formed in afrelatively'short time. It has been found by experience that operators have been injured in starting and stopping` the operation of suchmachines, for the reason that their hands and arms have come into the path of the rapidly rotating flier. Again, many operators become careless and attempt to remove the formed balls from the spindle before the machine has come to a state of rest. Even though guards have been provided for vthe purpose of protect-' ing 'operators `from being' injured by the rapidly rotating flier, in a rgreat many, instances operators hav'e failed to' make use `of the guards, due to thellfact'ith'at an keXtra operation was 'required' to open and close the guard.' l

It, therefore, -is primarily the object of this invention to' render the operation of balling machines safer, yand secondarily to control the operation of the machine and at the same time controlautomatically the opi eration` of the flier guard to'avoidvinjury.

-These objects are accomplished by providing an interlock between the actuating mechanism of the balling machine and the flier ard 'in a manner that when the machine is set into operation the flier is completely covered bythe guard, and [the guard re- Specification of Letters Patent. i y Patented Aug, 21, 1917,

Application led October 13, 1913. Serial No. 794,836.

mains in the protective position until the actuatingmechanism ofthe machine has been rendered ineffective; l Our invention is illustrated on the accompanying sheets of drawings, in which- Figure 1 is a side elevation of a balling machine embodying our invention;

Fig. 2 is a front elevationparts being in section, of the same machine;

Fig. 3 is a side elevation of parts ofthe machine, including the interlock mechanism; 'y

Fig.y t is a front view of trip mechanism forming part of the interlock;

Fig'. 5 is a side view of the same, taken from the opposite side shown in Fig. 3;

Fig. 6 is a detail view of a weightedbell craink lever forming a part of the interlock; an

Fig. 7 is a detail bottom view of a latch, forming a part of the sameinterlock.

The various novel features of ourinvention will be apparent from thedescriptionf a bracket 11, which supports a. revolubly mounted bobbin 12 from which twine 13 is fed vover a roller 14 and through a'iiier 15 onto a spindle 16, upon which a ball of twine is formed by the rapidly revolving flier 15. The flier 15 receives its rotary motion from a shaft 17, upon which a sprocketflS is mounted, said sprocket being in engagement with a chain 20 which passes over another gear mounted upon the flier spindle 19. The spindle 16 receives a relatively slow rotaryl movement from the same shaft 17 through a conical friction member-21 mounted upon said shaft and a friction wheel 22, mounted upon a shaft 23, having at one end thereof a'bevel Vgear 24 in mesh with another bevel gear 25 which is associated with the spindle 16. Mounted upon one end of the main shaft 17 yare `a loose pulley 26 and a tight pulley 27, yadapted to be engaged by a belt 28, which is shifted from one pulleyl to the other by a belt shifting bar29, which is'connected to a hand lever 30, said-lever-SO'bei'ng pivotally connected to the main frame 10 at 31. v

From the above it is seen that by shifting the hand lever 30 the belt may be shifted means, said guard being freed from said locking means to permit said member to move said guard into its other position when said starting and stopping means is operated.

.2. In a balling machine, the combination of a flier guard, a member for locking said guard in a protective position, means tending to shift said guard into a non-protective position, and starting and stopping means for controlling the operation of the machine and the locking means permitting the guard to pass to a non-protective position.

3. In a machine having a moving part, a guard for said part, means for locking the guard in one of its positions, a member tending to move the guard into another position, means for controlling the operation of the machine, and an operative connection between said guard and. said controlling` means, said guard being freed from the locking means 'to permit the member to move the guard into its other position when the controlling means is operated.

4L. In a balling machine, the combination of a Hier guard, a member for locking said guard in one of its positions, a member tending to move said guard into another position, a lever for starting and stopping the machine, and an operative connection between the guard and lever, said guard being freed from the locking means to permit the member to move the guard into said other position when the lever is operated.

5. In a machine having a moving part, a. guard for said part, a member for locking said guard in a protective position, means 'tending to shift the guard into a non-protective position, and control means for controlling the operation of the machine and the locking means permitting the guard to pass to a non-protective position.

6. In a machine having a moving part, a guard for said part, means for locking the guard in one position, means tending to shift the guard into another position, and control Copies of this patent may be obtained for means for controlling the operation of the machine and the locking means permitting the guard to pass from one of said positions to another position.

7. In a balling machine, the combination of flier guard, a lever operatively connected with said guard, a control lever, and a link extending between said levers, said link having a slot for the reception of a pin on one of said levers by means of which, when said control lever is moved in one direction, the lever is shifted to oli' position and then the guard is permitted to move away from its normal position.

8. Inv a balling machine, the combination of a flier guard, a lever operatively connected with said guard, a control lever, and a link extending between said levers, said link having a slot for the reception of a pin on one of said levers by means of which, when said control lever is moved in one direction, the lever is shifted to olf position and then the guard is permitted to move away from its normal' position, and when said control 1ever is moved in the opposite direction the guard ismoved into its normal position and then the machine started into operation.

9. In a balling machine, the combination of a flier guard, means for locking said guard in its normal position, a lever operatively connected with said guard, a spring engaging said lever tending to move said guard away from its normal position, a control lever, and a lost motion connection between said levers, said control lever for controlling the operation of said machine and for actuating said locking member to permit said spring to move said guard away from its normal position.

In testimony whereof we aHix our signa tures, in the presence of 'two witnesses.

CHARLES M. GREISING. JOHN DAHLIN. Witnesses:

SIG'URD J. OLBERG, MARTIN W. McDoNoUGH.

ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

